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Other Vintage Household Electrical or Electromechanical Items For discussions about other vintage (over 25 years old) electrical and electromechanical household items. See the sticky thread for details. |
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7th Nov 2017, 11:28 am | #1 |
Octode
Join Date: Jul 2005
Location: Newport, Gwent, UK.
Posts: 1,623
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Mains synchronous clock movement
Hello,
My mains synchronous clock (made in woodwork class half a century ago) has stopped working. I think the motor coil has gone open circuit. There is only one place that sells the motor, but unfortunately they are trade only! See https://www.cousinsuk.com/product/ma...ous?code=M7814 Note: this has to fit a panel 11 mm thick, there are other ones I can get for a 5 mm panel: however, the construction of the clock makes these unusable. Perhaps I could have the coil rewound? But there may be other problems with the motor, is it worth the risk? Or could I find a friendly clock repairer who could order for me? Michael |
7th Nov 2017, 11:43 am | #2 | |
Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,844
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Re: Mains synchronous clock movement
I'm sure Ed Dinning could re-wind it for you.
Or you could re-wind yourself using thicker wire and power it from a small step-down transformer: http://sound.whsites.net/clocks/ocm.html Quote:
Could you post a pic of the motor you currently have, please? Nick. |
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7th Nov 2017, 11:47 am | #3 |
Octode
Join Date: Jul 2005
Location: Newport, Gwent, UK.
Posts: 1,623
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Re: Mains synchronous clock movement
Hello Nick,
For Cousins, when you register with them don't you have to confirm that you are in the trade? Michael PS Sorry Nick, photo coming asap. |
7th Nov 2017, 11:57 am | #4 |
Octode
Join Date: Jul 2005
Location: Newport, Gwent, UK.
Posts: 1,623
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Re: Mains synchronous clock movement
Photos as promised
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7th Nov 2017, 12:07 pm | #5 |
Nonode
Join Date: May 2007
Location: Preston, Lancashire, UK.
Posts: 2,511
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Re: Mains synchronous clock movement
Did CE marking exist half a century ago?
Andy |
7th Nov 2017, 12:11 pm | #6 |
Octode
Join Date: Jul 2005
Location: Newport, Gwent, UK.
Posts: 1,623
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Re: Mains synchronous clock movement
You are right, this is a replacement movement! Must be 20 years old though I can't remember exactly.
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7th Nov 2017, 12:29 pm | #7 |
Nonode
Join Date: Aug 2010
Location: Resolven, Wales; and Bristol, England
Posts: 2,608
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Re: Mains synchronous clock movement
We have a Cousins account, we have to place an order most weeks.
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7th Nov 2017, 1:55 pm | #8 |
Banned
Join Date: Dec 2013
Location: Middlewich, Cheshire, UK. & Winter in the Philippines.
Posts: 3,897
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Re: Mains synchronous clock movement
CE marking started in 1993 replacing the EU mark.
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7th Nov 2017, 2:44 pm | #9 | |
Pentode
Join Date: May 2010
Location: Sandviken, Sweden
Posts: 233
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Re: Mains synchronous clock movement
Quote:
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8th Nov 2017, 1:03 am | #10 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,535
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Re: Mains synchronous clock movement
And presumably you don't have to say exactly what trade you're a member of....... you're a "restorer"- a perfectly good trade!
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8th Nov 2017, 9:42 am | #11 |
Dekatron
Join Date: Apr 2005
Location: Bewdley, Worcestershire, UK.
Posts: 4,748
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Re: Mains synchronous clock movement
H S Walsh are another supplier who come recommended:
https://www.hswalsh.com/categories/mains-synchronous
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Phil Optimist [n]: One who is not in possession of the full facts |
8th Nov 2017, 9:50 am | #12 |
Octode
Join Date: Mar 2006
Location: Co. Durham, UK.
Posts: 1,117
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Re: Mains synchronous clock movement
Can we have a pic. of the clock?
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8th Nov 2017, 9:53 am | #13 |
Octode
Join Date: Jul 2005
Location: Newport, Gwent, UK.
Posts: 1,623
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Re: Mains synchronous clock movement
Herald1360: Good point!
Phil: Unfortunately neither the CM310 nor the CM311 is suitable. The CM310 has a maximum panel thickness of 5 mm whereas mine is 11 mm; the CM311 is too big and also has no seconds hand. Thanks anyway! The Cousins one (M7814) is now in stock again so I'll try to order from them. Brigham: Yes, indeed, photo coming this morning. |
8th Nov 2017, 10:03 am | #14 |
Nonode
Join Date: May 2007
Location: Preston, Lancashire, UK.
Posts: 2,511
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Re: Mains synchronous clock movement
Another approach is to rewind the motor to operate on a low voltage and add a transformer. I've previously linked here to a website which gives details, but I can't spot my posting at the moment. It makes sense because the typical coil for operation at 240v is wound with thousands of turns of fine wire, whereas rewinding for, say, 6 volts means fewer turns of thicker wire, much more manageable.
Andy |
8th Nov 2017, 10:37 am | #15 |
Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,844
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Re: Mains synchronous clock movement
See my link in post 2, Andy
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8th Nov 2017, 12:06 pm | #16 |
Octode
Join Date: Jul 2005
Location: Newport, Gwent, UK.
Posts: 1,623
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Re: Mains synchronous clock movement
Photos
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8th Nov 2017, 12:11 pm | #17 |
Banned
Join Date: Dec 2013
Location: Middlewich, Cheshire, UK. & Winter in the Philippines.
Posts: 3,897
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Re: Mains synchronous clock movement
Now that is pretty, and you made this when you were in your crib?
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8th Nov 2017, 12:26 pm | #18 |
Octode
Join Date: Jul 2005
Location: Newport, Gwent, UK.
Posts: 1,623
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Re: Mains synchronous clock movement
Age 14 I think!
Perhaps it could also do with a set of new hands .... |
8th Nov 2017, 12:28 pm | #19 |
Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,844
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Re: Mains synchronous clock movement
That's a lovely piece indeed, with a classic 1930s look to it.
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8th Nov 2017, 3:25 pm | #20 |
Nonode
Join Date: May 2007
Location: Preston, Lancashire, UK.
Posts: 2,511
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Re: Mains synchronous clock movement
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